Expo bridge
Coordinates: 51 ° 25 ′ 38 ″ N , 6 ° 48 ′ 12 ″ E
| Expo bridge | ||
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| use | footbridge | |
| Crossing of | A 3 | |
| place | Duisburg | |
| construction | Cable-stayed bridge | |
| overall length | approx. 70 m | |
| width | 4.40 m | |
| Longest span | approx. 50 m | |
| completion | 1958/2000 | |
| planner | Egon Eiermann , Sep Ruf | |
| location | ||
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The Expo-Brücke is a pedestrian bridge that has been crossing the federal highway 3 in Duisburg - Neudorf-Nord since August 8, 2000 in the course of the Forsthausweg and leading to the Duisburg city forest .
It originally served as access to the German pavilions designed by Egon Eiermann and Sep Ruf at the Expo 58 in Brussels . After the exhibition, it was built in Duisburg as a zoo bridge over the then only four-lane A3. When the A3 was widened to six lanes, it was set up at its current location on Forsthausweg and lengthened accordingly.
The bridge on Forsthausweg was one of the first modern cable-stayed bridges . From its 50 m high, yellow painted, slightly outwardly angled tower, three parallel ropes are stretched diagonally on each side to form a supporting beam, from which cantilever brackets protrude every 3.30 m, on which the 3.10 m wide pedestrian walkway rests. Because of this arrangement, the bridge can run alongside the ropes.
The tower consists of a rounded steel hollow box profile, which is strongest at the level of the bridge and tapers to the top. The supporting beam is also a steel 1.30 m high box girder, the width of which decreases from 0.70 m at the pylon tower to 0.325 m at both ends. The harp-shaped but not symmetrically arranged ropes are attached to the pylon tower at intervals of 7.90 m above the bridge bridge. The bridge was originally 57.50 m long and had two openings with spans of 32.40 m and 18.27 m and light supports at the outer ends.
When they were moved to their current location, a concrete block clad with natural stone was built as a western abutment from which a short concrete slab protrudes. The gap to the original bridge was closed by a suspension girder like a Gerber girder bridge . In addition, the ropes and the covering of the pedestrian walkway were renewed. In order to reduce the bridge's sensitivity to vibrations caused by this extension, a dynamic vibration absorber was installed.
The Expo-Brücke was entered on November 25, 1987 under the number 131 in the list of monuments of the city of Duisburg ( monuments in Duisburg-Mitte ).
Web links
Individual evidence
- ↑ a b Former zoo bridge on baukunst-nrw
- ↑ a b René Walther, Bernard Houriet, Walmar Isler, Pierre Moïa: Cable- stayed bridges . Revised edition and translation, Verlag Bau + Technik / Beton-Verlag, Düsseldorf 1994.
- ↑ Damped vibrations. Eiermann Bridge in Duisburg reopened Article from August 10, 2000 on BauNetz